21659040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{89}}^1$

素因数の和:136

約数の個数: 216

約数和(自身を含む): 80933580

約数和(自身を除く): 59274540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 89, 90, 96, 104, 117, 120, 130, 144, 156, 160, 169, 178, 180, 195, 208, 234, 240, 260, 267, 288, 312, 338, 356, 360, 390, 416, 445, 468, 480, 507, 520, 534, 585, 624, 676, 712, 720, 780, 801, 845, 890, 936, 1014, 1040, 1068, 1157, 1170, 1248, 1335, 1352, 1424, 1440, 1521, 1560, 1602, 1690, 1780, 1872, 2028, 2080, 2136, 2314, 2340, 2535, 2670, 2704, 2848, 3042, 3120, 3204, 3380, 3471, 3560, 3744, 4005, 4056, 4272, 4628, 4680, 5070, 5340, 5408, 5785, 6084, 6240, 6408, 6760, 6942, 7120, 7605, 8010, 8112, 8544, 9256, 9360, 10140, 10413, 10680, 11570, 12168, 12816, 13520, 13884, 14240, 15041, 15210, 16020, 16224, 17355, 18512, 18720, 20280, 20826, 21360, 23140, 24336, 25632, 27040, 27768, 30082, 30420, 32040, 34710, 37024, 40560, 41652, 42720, 45123, 46280, 48672, 52065, 55536, 60164, 60840, 64080, 69420, 75205, 81120, 83304, 90246, 92560, 104130, 111072, 120328, 121680, 128160, 135369, 138840, 150410, 166608, 180492, 185120, 208260, 225615, 240656, 243360, 270738, 277680, 300820, 333216, 360984, 416520, 451230, 481312, 541476, 555360, 601640, 676845, 721968, 833040, 902460, 1082952, 1203280, 1353690, 1443936, 1666080, 1804920, 2165904, 2406560, 2707380, 3609840, 4331808, 5414760, 7219680, 10829520, 21659040]

約数ペア:

[(1, 21659040), (2, 10829520), (3, 7219680), (4, 5414760), (5, 4331808), (6, 3609840), (8, 2707380), (9, 2406560), (10, 2165904), (12, 1804920), (13, 1666080), (15, 1443936), (16, 1353690), (18, 1203280), (20, 1082952), (24, 902460), (26, 833040), (30, 721968), (32, 676845), (36, 601640), (39, 555360), (40, 541476), (45, 481312), (48, 451230), (52, 416520), (60, 360984), (65, 333216), (72, 300820), (78, 277680), (80, 270738), (89, 243360), (90, 240656), (96, 225615), (104, 208260), (117, 185120), (120, 180492), (130, 166608), (144, 150410), (156, 138840), (160, 135369), (169, 128160), (178, 121680), (180, 120328), (195, 111072), (208, 104130), (234, 92560), (240, 90246), (260, 83304), (267, 81120), (288, 75205), (312, 69420), (338, 64080), (356, 60840), (360, 60164), (390, 55536), (416, 52065), (445, 48672), (468, 46280), (480, 45123), (507, 42720), (520, 41652), (534, 40560), (585, 37024), (624, 34710), (676, 32040), (712, 30420), (720, 30082), (780, 27768), (801, 27040), (845, 25632), (890, 24336), (936, 23140), (1014, 21360), (1040, 20826), (1068, 20280), (1157, 18720), (1170, 18512), (1248, 17355), (1335, 16224), (1352, 16020), (1424, 15210), (1440, 15041), (1521, 14240), (1560, 13884), (1602, 13520), (1690, 12816), (1780, 12168), (1872, 11570), (2028, 10680), (2080, 10413), (2136, 10140), (2314, 9360), (2340, 9256), (2535, 8544), (2670, 8112), (2704, 8010), (2848, 7605), (3042, 7120), (3120, 6942), (3204, 6760), (3380, 6408), (3471, 6240), (3560, 6084), (3744, 5785), (4005, 5408), (4056, 5340), (4272, 5070), (4628, 4680)]